Seawolf 1940
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Sealion | N72 | Cammell Laird, Birkenhead | 5.1933 | 16.3.1934 | 12/1934 | sunk as target 3.3.1945 | |
| Shark | N54 | Chatham DYd | 6.1933 | 31.5.1934 | 12/1934 | sunk 6.7.1940 | |
| Salmon | S65 - N65 | Cammell Laird, Birkenhead | 6.1933 | 30.4.1934 | 3/1935 | sunk 9.7.1940 | |
| Snapper | N39 | Chatham DYd | 9.1933 | 25.10.1934 | 6/1935 | sunk 12.2.1941 | |
| Seawolf | N46 | Scotts, Greenock | 5.1934 | 28.11.1935 | 3/1936 | BU 6.1945 | |
| Spearfish | S69 - N69 | Cammell Laird, Birkenhead | 5.1935 | 21.4.1936 | 12/1936 | sunk 1.8.1940 | |
| Sunfish | N81 | Chatham DYd | 7/1935 | 30.9.1936 | 7.1937 | to Soviet Union 5.1944 (Â-1) (V-1) | |
| Sterlet | N22 | Chatham DYd | 7.1936 | 22.9.1937 | 4/1938 | sunk 16.4.1940 |
|
Displacement standard, t |
670 |
|
Displacement normal, t |
768 / 960 |
|
Length, m |
63.6 |
|
Breadth, m |
7.32 |
|
Draught, m |
3.61 |
|
No of shafts |
2 |
|
Machinery |
2 Admiralty diesels / 2 electric motors |
|
Power, h. p. |
1550 / 1440 Sunfish: 1900 / 1440 |
|
Max speed, kn |
14 / 10 Sunfish: 15 / 10 |
|
Fuel, t |
diesel oil 39 |
|
Endurance, nm(kts) |
3800(10) / |
|
Armament |
1 x 1 - 76/45 20cwt QF Mk II, 1 x 1 - 12.7/62, 6 - 533 TT (bow; 12) |
| Sensors | type 129 sonar |
|
Complement |
39 |
| Diving depth operational, m | 60 |
Project history: Development of "S" class with a little bit increased length at the expense of additional (1.9m) section of pressure hull. Sunfish had more powerful diesels. Submarines were built under 1931-1935 Programmes.
Modernizations: 1940s, Seawolf, Sunfish: received ability to carry 12 M2 mines instead of torpedoes
1942-1944, all survived: + type 286W or type 291W radar
Naval service: Sterlet was sunk by DCs of German minesweeper Ì75 and submarine chasers UJ125, UJ126 and UJ128 in the North Sea 18.4.1940. Salmon was lost 9.7.1940 on a mine at Stavanger. Shark was badly damaged 5.7.1940 by German aircraft and minesweepers M1803, M1806 and M1807 and sunk next day. Spearfish was sunk 1.8.1940 by German submarine U34 in the North Sea. Snapper was sunk by DCs of German minesweepers Ì2, Ì13 and Ì25 in Atlantic 12.2.1941. Sealion was sunk as a target 3.3.1945.
Salmon 1938
© Ivan Gogin, 2008-10